Hydrogen Peroxide → N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methyloxirane-2-carboxamide

Participants

Reaction Conditions

Reaction Steps

10 ml of 30% aqueous hydrogen peroxide is heated to 35-40° C. 20 ml of acetic anhydride is added dropwise under cooling, so that the temperature does not exceed 40-50° C. 0.02 g of wolframic acid is added and the reaction mixture is stirred for 0.5 hours at 50-55° C. 3 grams of the amide (7) is added to the mixture portionwise and the reaction mixture is stirred for 6 hours at 50-55° C. The suspension is then cooled to 20-25° C. and poured, under stirring, into 100 ml of cold (0-5° C.) water. The suspension is stirred for 30 minutes and the solid is filtered off, washed by water and dried at 40-50° C.

Provenance & Evidence